3x+3(x+7)=-9

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Solution for 3x+3(x+7)=-9 equation: 



3x+3(x+7)=-9

We move all terms to the left:

3x+3(x+7)-(-9)=0

We add all the numbers together, and all the variables

3x+3(x+7)+9=0

We multiply parentheses

3x+3x+21+9=0

We add all the numbers together, and all the variables

6x+30=0

We move all terms containing x to the left, all other terms to the right

6x=-30

x=-30/6

x=-5

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